The maximum allowable working pressure on the shell or drum of a power boiler shall be determined by the strength of the weakest area of the boiler as computed by the principles of the ASME code, Section I (1971 Edition).
A. Boilers which are reinstalled of lap riveted construction or seams of butt and double strap riveted construction shall use the ASME code, Section I (1971 Edition).B. A boiler constructed with fusion-welded seams and not x-rayed and stress relieved during construction, shall not be operated at a pressure in excess of fifteen pounds per square inch.C. The factor of safety shall be increased by the inspector if the conditions and safety of the boiler demand it.229 Neb. Admin. Code, ch. 21, § 002
Amended effective 8/7/2016.